988523077453 has 4 divisors (see below), whose sum is σ = 988681984668. Its totient is φ = 988364170240.

The previous prime is 988523077427. The next prime is 988523077469. The reversal of 988523077453 is 354770325889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151155331369 + 837367746084 = 388787^2 + 915078^2 .

It is a cyclic number.

It is not a de Polignac number, because 988523077453 - 2⁹ = 988523076941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 988523077391 and 988523077400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988523074453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79444276 + ... + 79456717.

It is an arithmetic number, because the mean of its divisors is an integer number (247170496167).

Almost surely, 2^988523077453 is an apocalyptic number.

It is an amenable number.

988523077453 is a deficient number, since it is larger than the sum of its proper divisors (158907215).

988523077453 is a wasteful number, since it uses less digits than its factorization.

988523077453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158907214.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 988523077453 in words is "nine hundred eighty-eight billion, five hundred twenty-three million, seventy-seven thousand, four hundred fifty-three".